*{
    margin: 0;
    padding:0
}
html,body{
    width: 100%;
    height: 100%;
}
.box{
    width: 100%;
}

.box-context{
    width: 1440px;
    margin: 0 auto;
}

table{
    width: 100%;
    border-collapse: collapse;
    th,td,th{
        border: 1px solid black;
        text-align: center;
    }
    tbody tr td:nth-child(4) button{
        width: 40px;
    }
}

.input-box{
    width: 300px;
    height: 150px;
    position: fixed;
    border: 1px solid black;
    top: calc(50% - 150px);
    left: calc(50% - 150px);
    background-color: #fff;
}